通信学报 ›› 2021, Vol. 42 ›› Issue (7): 25-40.doi: 10.11959/j.issn.1000-436x.2021107

• 学术论文 • 上一篇    下一篇

智能变电站通信业务优先级及其队列调度方法

李俊娥1,2, 陆秋余1,2, 刘剑3, 袁凯3, 田薇3, 彭弼君3   

  1. 1 空天信息安全与可信计算教育部重点实验室,湖北 武汉 430072
    2 武汉大学国家网络安全学院,湖北 武汉 430072
    3 武汉大学电气与自动化学院,湖北 武汉 430072
  • 修回日期:2021-03-01 出版日期:2021-07-25 发布日期:2021-07-01
  • 作者简介:李俊娥(1966− ),女,河北怀安人,博士,武汉大学教授、博士生导师,主要研究方向为计算机网络体系结构、网络安全、电力信息物理系统和电力工业控制安全等
    陆秋余(1996− ),女,浙江杭州人,武汉大学博士生,主要研究方向为智能电网通信QoS保障和网络安全
    刘剑(1976− ),男,湖北黄陂人,博士,武汉大学副教授,主要研究方向为电力系统可靠性、风险评估、全寿命周期成本评估和智能电网的在线监测及预警等
    袁凯(1989− ),男,湖北荆州人,武汉大学博士生,主要研究方向为智能电网通信QoS保障和可靠性分析
    田薇(1992− ),女,四川眉山人,武汉大学硕士生,主要研究方向为电力系统网络通信、信息采集和电力系统自动化
    彭弼君(1992− ),女,湖南长沙人,武汉大学硕士生,主要研究方向为电力系统网络通信
  • 基金资助:
    国家电网有限公司总部科技项目“针对网络攻击的电网信息物理系统协同运行态势感知与主动防御方法研究”基金资助项目(SGJSDK00KJJS1800315)

Communication service priority in smart substation and its queue scheduling method

Jun’e LI1,2, Qiuyu LU1,2, Jian LIU3, Kai YUAN3, Wei TIAN3, Bijun PENG3   

  1. 1 Key Laboratory of Aerospace Information Security and Trusted Computing, Ministry of Education, Wuhan 430072, China
    2 School of Cyber Science and Engineering, Wuhan University, Wuhan 430072, China
    3 School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
  • Revised:2021-03-01 Online:2021-07-25 Published:2021-07-01
  • Supported by:
    The Science and Technology Project of State Grid Corporation of China “Research on Cooperative Situation Awareness and Active Defense Method of Cyber Physical Power System for Cyber Attack”(SGJSDK00KJJS1800315)

摘要:

电网的发展对智能变电站提出了全站一网的要求。为满足多种通信业务的不同服务质量(QoS)需求,并保证网络拥塞时关键业务的实时性与可靠性,提出了一种智能变电站业务优先级及其队列调度方法。综合考虑业务时延要求、业务对电网运行控制的重要度和业务流量大小3种因素,对站内通信业务进行了优先级划分;针对新的业务优先级,结合严格优先级队列(SPQ)算法和赤字加权轮询(DWRR)算法的优点,设计了分层级赤字加权轮询(HDWRR)队列调度算法。仿真结果表明,所提方法对恶意流量具有较好的隔离能力,在网络拥塞时仍能保证智能变电站关键业务的实时可靠传输。

关键词: 智能变电站, 业务优先级, 队列调度, 服务质量

Abstract:

The future development of power grid puts forward the requirement of unified network for all the communication services in smart substation.In order to meet the different quality of service (QoS) requirements of various communication services, as well as ensure the real-time and reliability of key services when the network congestion occurs, a priority scheme and its queue scheduling method for the smart substation was proposed.The priorities of the communication services in the smart substation were assigned considering the delay requirements, the importance to power grid operation control, and the traffic of the communication services.The queue scheduling algorithm of hierarchical deficit weighted round robin (HDWRR), combining the advantages of strict priority queue (SPQ) algorithm and deficit weight round robin (DWRR) algorithm, was designed for the proposed priority scheme.The simulation results show that the proposed method has isolation ability for malicious traffic, and can ensure the real-time and reliable transmission of key services in smart substation once the network is congested.

Key words: smart substation, service priority, queue scheduling, QoS

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